<?php
namespace Baidu\Aip\Lib;

class AipSignOption
{
    const EXPIRATION_IN_SECONDS = 'expirationInSeconds';
    
    const HEADERS_TO_SIGN = 'headersToSign';
    
    const TIMESTAMP = 'timestamp';
    
    const DEFAULT_EXPIRATION_IN_SECONDS = 1800;
    
    const MIN_EXPIRATION_IN_SECONDS = 300;
    
    const MAX_EXPIRATION_IN_SECONDS = 129600;
}